I feel stuck... :( how many of you are in unhappy/toxic relationships because you can’t support yourself and your baby financially?

Things have been going down hill for a while now and when I gave birth to my son I was on maternity leave for 3 months and went through my savings and then left my full time job with great benefits and now work part time to take care of my son. Now my boyfriend pays all the bills except for child care, and our relationship is so toxic I want to leave but i know I can’t afford all the bills on my own 😔💔 I feel stuck. I need to leave this relationship and this house but don’t even know what the first step would be...